Surgical instrumentation and method for retracting and shifting tissues
First Claim
1. Surgical instrumentation to perform a surgical intervention on a patient'"'"'s spine, comprising:
- a frame;
a number of valves; and
a number of articulated devices each corresponding to one of said valves and each being adapted to be rigidly fixed to said frame in a spaced apart relationship from one to another, said devices each including a first portion coupled to a respective one of said valves and a second portion contacting said first portion in a bearing relationship, said second portion defining a passage bounded by a conical bearing surface, said devices each being selectively operable to permit said first portion to slidably pivot about said second portion with two degrees of freedom to adjust angular position of said respective one of said valves over a range of angles generally corresponding to a cone defined by said passage; and
wherein said devices are each operable to selectively clamp said respective one of said valves, said first portion, and said second portion together, with said respective one of said valves being in an angular position selected from said range to retract tissue in contact therewith to establish an operating area along the patient'"'"'s spine.
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Accused Products
Abstract
This instrumentation comprises valves (2) for shifting aside tissues and vessels, pins for fixing each valve (2) to the spine, each valve (2) comprising for this purpose sleeves (6) in which the pin (5) is slidable; the instrumentation further comprises, for each valve (2), an articulated device (7) comprising a clamp (12) for clamping a rod (13) fixed to the valve (2); the clamp (12) may be articulated to a ball and oriented in all directions in space while the rod (13) and the valve (2) are adjustable in translation in the clamp (12); the articulated devices (7) are adjustably slidably mounted on a support frame (8). The instrumentation further comprises a push member which is capable of bearing against the valves (2) and preventing them from slipping on the surface of the spine while they are being placed in position. This device permits conveniently orienting the valves (2) in all directions and in translation.
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Citations
39 Claims
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1. Surgical instrumentation to perform a surgical intervention on a patient'"'"'s spine, comprising:
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a frame; a number of valves; and a number of articulated devices each corresponding to one of said valves and each being adapted to be rigidly fixed to said frame in a spaced apart relationship from one to another, said devices each including a first portion coupled to a respective one of said valves and a second portion contacting said first portion in a bearing relationship, said second portion defining a passage bounded by a conical bearing surface, said devices each being selectively operable to permit said first portion to slidably pivot about said second portion with two degrees of freedom to adjust angular position of said respective one of said valves over a range of angles generally corresponding to a cone defined by said passage; and wherein said devices are each operable to selectively clamp said respective one of said valves, said first portion, and said second portion together, with said respective one of said valves being in an angular position selected from said range to retract tissue in contact therewith to establish an operating area along the patient'"'"'s spine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. Surgical instrumentation, comprising:
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a first retractor; a second retractor; a frame interconnecting a first device and a second device in a spaced apart relationship; said first device operable to connect to said first retractor, said first device including a first ball joint riding on a first device pin coupled to said frame, said first ball joint to angularly position said first retractor over a first range of angles when said first retractor is coupled to said first device, said first device being arranged to selectively fix said first retractor at a first angle selected from said first range; and said second device operable to connect to said second retractor, said second device including a second ball joint riding on a second device pin coupled to said frame, said second ball joint to angularly position said second retractor over a second range of angles when said second retractor is coupled to said second device, said second device being arranged to selectively fix said second retractor at a second angle selected from said second range. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. Surgical instrumentation, comprising:
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a first retractor; a first articulated device including a first retractor mount to mount said first retractor to said first device, said first device further including a first pin, said first mount defining a first passage through which said first pin passes, said first passage being shaped to selectively move said first mount relative to said first pin with two degrees of freedom over a first range of different angular positions and correspondingly position said first pin over a range of different locations within said passage, said first retractor being angularly adjustable with said first mount when mounted to said first device; and wherein said first device is operable to selectively clamp said first mount and said first pin together to rigidly fix said first retractor at a desired angle selected from said first range when said first retractor is mounted to said first device. - View Dependent Claims (17, 18, 19, 20, 21)
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22. Surgical instrumentation, comprising:
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a first retractor including a first rod portion; a first articulated device including a first mount coupled to said first rod portion of said first retractor and a first bearing member, said first bearing member including a first rounded shoulder and a first stem projecting from said first shoulder, said first mount defining a first passage receiving said first shoulder to contact said first mount, said first passage being shaped to permit movement of said first mount along said first shoulder while in contact therewith to angularly adjust said first retractor, said first stem extending through said first passage to limit angular adjustment of said first retractor to a first range of angles; and wherein said first device is operable to selectively clamp said first mount and said first bearing member together to fix said first retractor at a first angle selected from said first range of angles. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. A method of performing surgery on a patient'"'"'s spine, comprising:
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mounting a first valve on a frame with a first articulated device, the first valve being fixed to a rod, the first device including a mount defining a cavity for receiving the rod and a bearing member engaged with the mount; sliding the rod in the cavity to provide a desired translational position of the rod relative the first device; pivoting the mount about the bearing member to select a desired angular position of the first valve from a range of angles generally corresponding to a cone; clamping the first valve in the desired translational and angular position; and connecting a second valve on the frame with a second articulated device, the second valve being spaced apart from the first valve, the first valve and the second valve being oriented to shift aside tissue to maintain an operating field along the patient'"'"'s spine. - View Dependent Claims (30, 31, 32, 33)
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34. Surgical instrumentation to perform a surgical intervention on a patient'"'"'s spine, comprising:
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a frame; a number of valves; and a number of articulated devices each corresponding to one of said valves and each being adapted to be rigidly fixed to said frame in a spaced apart relationship from one to another, said devices each including a first portion coupled to a respective one of said valves and a second portion contacting said first portion in a bearing relationship, wherein said second portion of each of said devices includes a hollow, ball-shaped part integrally connected to a sleeve and a device pin slidably passing through said ball-shaped part and said sleeve, said devices each being selectively operable to permit said first portion to slidably pivot about said second portion with two degrees of freedom to adjust angular position of said respective one of said valves over a range of angles; and wherein said devices are each operable to selectively clamp said respective one of said valves, said first portion, and said second portion together, with said respective one of said valves being in an angular position selected from said range to retract tissue in contact therewith to establish an operating area along the patient'"'"'s spine. - View Dependent Claims (35, 36, 37, 38, 39)
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Specification